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Níels Ö. Óskarsson
Crystal System:
Named by M.J. Jacobsen et al. in 2012 in honor of Níels Örn Óskarsson (1944-), volcanologist at the University of Iceland, for his work on Icelandic fumaroles.

Isostructural with:
The low-temperature form of AlF3. The Al analogue of waimirite-(Y). Anhydrous counterpart of rosenbergite and 'UM1988-02-F:AlHO'.

The mineral might have first been found by Rosenberg (1988) at Mt. Erebus.

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Classification of ÓskarssoniteHide

Approval Year:
First Published:

Chemical Properties of ÓskarssoniteHide


Crystallography of ÓskarssoniteHide

Crystal System:
Class (H-M):
3 - Rhombohedral
Space Group:
Cell Parameters:
a = 4.9817(4) Å, c = 12.387(1) Å
a:c = 1 : 2.487
Unit Cell V:
266.23 ų

X-Ray Powder DiffractionHide

Powder Diffraction Data:
From Type Description.

Type Occurrence of ÓskarssoniteHide

General Appearance of Type Material:
Sub-micron-sized crystals forming a white powder.
Place of Conservation of Type Material:
Icelandic Institute of Natural History, Gardabaer, Iceland, NI24489.
Natural History Museum of Denmark, Copenhagen, Denmark, 2012.112, 2012.113, 2012.114.
Geological Setting of Type Material:
Surface of fumaroles on the Eldfell volcano, Heimaey Island, Iceland
Associated Minerals at Type Locality:

Synonyms of ÓskarssoniteHide

Relationship of Óskarssonite to other SpeciesHide

Other Members of this group:
Waimirite-(Y)YF3Orth. mmm (2/m 2/m 2/m) : Pnma

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for ÓskarssoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Rosenberg, P.E. (1988) Aluminum fluoride hydrates, volcanogenic salts from Mount Erebus, Antarctica. American Mineralogist: 73: 855-860
Daniel, P., Bulou, A., Rousseau, M., Nouet, J., Fourquet, J.L., Leblance, M., Burriel, R. (1990) A study of the structural phase transitions in AlF3: x-ray powder diffraction, DSC and Raman scattering investigations of the lattice dynamics and phonon spectrum. Journal of Physics: Condensed Matter: 2: 5663-5677.
Jacobsen, M.J., Balić-Žunić, T., Mitolo, D., Katerinopoulou, A., Garavelli, A. and Jakobsson, S.P. (2013) Oskarssonite, IMA 2012-088. CNMNC Newsletter No. 16, August 2013, page 2697; Mineralogical Magazine: 77: 2695-2709.
Jacobsen, M.J., Balić-Žunić, T., Mitolo, D., Katerinopoulou, A., Garavelli, A., Jakobsson, S.P. (2014) Oskarssonite, AlF3, a new fumarolic mineral from Eldfell volcano, Heimaey, Iceland. Mineralogical Magazine: 78: 215-222.
Belakovskiy, D., Cámara, F., Uvarova, Y., Gagne, O.C. (2014) New mineral names. American Mineralogist: 99: 1806-1813.
Mitchell, R.H., Welch, M.D., Chakhmouradian, A.R. (2017) Nomenclature of the perovskite supergroup: A hierarchical system of classification based on crystal structure and composition. Mineralogical Magazine: 81: 411-461.

Internet Links for ÓskarssoniteHide

Localities for ÓskarssoniteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Eastern Antarctica
    • Victoria Land
      • Ross Island
Rosenberg, P.E. (1988): Aluminum fluoride hydrates, yolcanogenic salts from Mount Erebus, Antarctica. American Mineralogist: 73: 855-860
  • Mato Grosso
    • Juína kimberlite field
      • Juína
Kaminsky, F.V., Wirth, R., Schreiber, A. (2013): Carbonatitic inclusions in deep mantle diamond from Juina, Brazil: new minerals in the carbonate-halide association. Can. Mineral. 51, 669-688.
Kaminsky, F. V., Ryabchikov, I. D., & Wirth, R. (2015). A primary natrocarbonatitic association in the Deep Earth. Mineralogy and Petrology, 1-12.
  • Southern Region
    • Rangárþing ytra
Balić-Žunić T., Mitolo D., Garavelli A., Jakobsson S.P., Leonardsen E. (2014): New fumarolic minerals from Mt. Hekla volcano, Iceland: FeF3(H2O)3. Plinius, 40, 294.
    • Vestmannaeyjar
      • Vestmannaeyjar archipelago (Westman islands)
        • Heimaey island
Jacobsen, M.J., Balić-Žunić, T., Mitolo, D., Katerinopoulou, A., Garavelli, A., Jakobsson, S.P. (2014): Oskarssonite, AlF3, a new fumarolic mineral from Eldfell volcano, Heimaey, Iceland. Mineralogical Magazine,78, 215-222.
Mineral and/or Locality  
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